
import java.awt.*;
import java.awt.event.KeyEvent;
import java.util.ArrayList;
import java.util.List;
import javax.accessibility.Accessible;
import javax.accessibility.AccessibleContext;
import javax.accessibility.AccessibleState;
import javax.accessibility.AccessibleStateSet;
import javax.swing.*;
import javax.swing.plaf.nimbus.NimbusLookAndFeel;

/*
 * @test
 * @key headful
 * @bug 8134116
 * @summary JTabbedPane$Page.getBounds throws IndexOutOfBoundsException
 * @run main Bug8134116
 */
public class Bug8134116 {

    private static volatile Exception exception = null;

    public static void main(String args[]) throws Exception {

        try {
            UIManager.setLookAndFeel(new NimbusLookAndFeel());
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        SwingUtilities.invokeAndWait(() -> {
            JPanel panel0 = new JPanel();
            JPanel panel2 = new JPanel();
            BadPane badPane = new BadPane();
            badPane.add("zero", panel0);
            badPane.add("one", null);  // no component
            badPane.add("", panel2);  // no title
            badPane.add("", null); // no component, no title
            // but give it that via a tabComponent
            JPanel tabComponent = new JPanel();
            JLabel tabComponentLabel = new JLabel("three");
            tabComponent.add(tabComponentLabel);
            badPane.setTabComponentAt(3, tabComponent);
            JFrame frame = new JFrame();
            frame.add(badPane);
            frame.setSize(300, 300);
            frame.setVisible(true);

            try {
                AccessibleContext ac = badPane.getAccessibleContext();
                Accessible page0 = ac.getAccessibleChild(0);
                if (page0 == null) {
                    // Not something being tested, but checking anyway
                    throw new RuntimeException("getAccessibleChild(0) is null");
                }
                Accessible page1 = ac.getAccessibleChild(1);
                if (page1 == null) {
                    // Not something being tested, but checking anyway
                    throw new RuntimeException("getAccessibleChild(1) is null");
                }
                Accessible page2 = ac.getAccessibleChild(2);
                Accessible page3 = ac.getAccessibleChild(3);
                // page0 - page3 are JTabbedPane.Page, a private inner class
                // and is an AccessibleContext
                // and implements Accessible and AccessibleComponent
                AccessibleContext pac0 = page0.getAccessibleContext();
                AccessibleContext pac1 = page1.getAccessibleContext();
                AccessibleContext pac2 = page2.getAccessibleContext();
                AccessibleContext pac3 = page3.getAccessibleContext();

                // test Page.getBounds
                // ensure no IndexOutOfBoundsException
                Rectangle r0 = pac0.getAccessibleComponent().getBounds();
                // make sure second Bounds is different than first
                Rectangle r1  = pac1.getAccessibleComponent().getBounds();
                if (r1.equals(r0)) {
                    String msg = "Second tab should not have same bounds as first tab";
                    throw new RuntimeException(msg);
                }

                // test Page.getAccessibleStateSet
                // At this point page 0 is selected
                AccessibleStateSet accSS0 = pac0.getAccessibleStateSet();
                if (!accSS0.contains(AccessibleState.SELECTED)) {
                    String msg = "Empty title -> AccessibleState.SELECTED not set";
                    throw new RuntimeException(msg);
                }
                // select second tab
                badPane.setSelectedIndex(1);
                AccessibleStateSet accSS1 = pac1.getAccessibleStateSet();
                if (!accSS1.contains(AccessibleState.SELECTED)) {
                    String msg = "Second tab selected but AccessibleState.SELECTED not set";
                    throw new RuntimeException(msg);
                }
                // select third tab
                badPane.setSelectedIndex(2);
                AccessibleStateSet accSS2 = pac2.getAccessibleStateSet();
                if (!accSS1.contains(AccessibleState.SELECTED)) {
                    String msg = "Third tab selected but AccessibleState.SELECTED not set";
                    throw new RuntimeException(msg);
                }
                // select fourth tab
                badPane.setSelectedIndex(3);
                AccessibleStateSet accSS3 = pac3.getAccessibleStateSet();
                if (!accSS1.contains(AccessibleState.SELECTED)) {
                    String msg = "Fourth tab selected but AccessibleState.SELECTED not set";
                    throw new RuntimeException(msg);
                }

                // test Page.getAccessibleIndexInParent
                if (pac0.getAccessibleIndexInParent() == -1) {
                    String msg = "Empty title -> negative AccessibleIndexInParent";
                    throw new RuntimeException(msg);
                }
                if (pac0.getAccessibleIndexInParent() != 0) {
                    String msg = "first tab is not at index 0 in parent";
                    throw new RuntimeException(msg);
                }
                if (pac1.getAccessibleIndexInParent() != 1) {
                    String msg = "second tab (null component) is not at index 1 in parent";
                    throw new RuntimeException(msg);
                }
                if (pac2.getAccessibleIndexInParent() != 2) {
                    String msg = "third tab (empty title) string is not at index 2 in parent";
                    throw new RuntimeException(msg);
                }
                if (pac3.getAccessibleIndexInParent() != 3) {
                    String msg = "fourth tab (empty title, null component, has tabComponent) string is not at index 3 in parent";
                    throw new RuntimeException(msg);
                }

                // test Page.getAccessibleName
                String accName = pac0.getAccessibleName();
                if (!accName.equals("zero")) {
                    String msg = "Empty title -> empty AccessibleName";
                    throw new RuntimeException(msg);
                }
                // test Page.getAccessibleName when component is null
                accName = pac1.getAccessibleName();
                if (!accName.equals("one")) {
                    String msg = "AccessibleName of null panel not 'one'";
                    throw new RuntimeException(msg);
                }

                // test Page.setDisplayedMnemonicIndex
                //  Empty title -> IllegalArgumnetException
                badPane.setDisplayedMnemonicIndexAt(0, 1);

                // test Page.updateDisplayedMnemonicIndex
                badPane.setMnemonicAt(0, KeyEvent.VK_Z);
                if (badPane.getDisplayedMnemonicIndexAt(0) == -1) {
                    String msg="Empty title -> getDisplayedMnemonicIndexAt failure";
                    throw new RuntimeException(msg);
                }
            } catch (Exception e) {
                exception = e;
            }
        });
        if (exception != null) {
            System.out.println("Test failed: " + exception.getMessage());
            throw exception;
        } else {
            System.out.println("Test passed.");
        }
    }

    // The following is likely what is being done in Burp Suite
    // https://portswigger.net/burp/ which fails in the same way, i.e. the
    // pages List in JTabbedPane is not being managed properly and thus
    // Page.title is "" for each page.  The overridden insertTab manages titles
    // in the subclass passing a "" title to the superclass JTabbedPane through
    // its insertTab.  Later an overridden getTitleAt returns the titles as
    // managed by the subclass.
    static class BadPane extends JTabbedPane {
        private List<String> titles;

        BadPane() {
            titles = new ArrayList<String>(1);
        }

        @Override
        public void insertTab( String title, Icon icon, Component component,
                               String tip, int index ) {
            titles.add(index, title);
            super.insertTab("", icon, component, tip, index);
        }

        @Override
        public String getTitleAt(int i) {
            return titles.get(i);
        }
    }

}
